Nette Gedanken, die wir uns öfters mal in Erinnerung rufen sollten.
http://medfmt.8k.com/mf/zen.html

Ich zitiere mal:
"In our blind lens test, lens variations were a bigger factor than brand of camera or lens you used. Most users rated the good examples of the $50-75 Bronica Nikkor lenses ahead of the Hasselblad and Rolleiflex Zeiss planar lenses. But the "bad" lemon lens example was rated quite a bit lower on average than the Hasselblad lenses in this test."

Oder:
"These blind lens tests have been very helpful in liberating me from concerns over "upgrading" lenses at great cost. Instead, we should take a more zen approach to accepting our lenses as what they are, i.e., usually not the limiting factor in our photographic results. Other factors more under our control like film choice or careful focusing (...) will improve our results more than the most costly lens and camera used with poor technique."

Da ist was Wahres dran...